Box-car-door hanger



Feb. 5, 1924. 1,482,431

' V F. M. FRIESELL BOX CAR DOOR HANGER Filed July 25. 1922 2 Sheets-Sheet 1 FRANK M. F/P/ESELL.

Feb. 5 1924.

' F. FRIESELL 1318.243!

BOX CAR DOOR HANGER Filed July 25. 1922 2 Sheets$heet 2 III/II/IL. II

2 4 FRANK L. By M n A TTOPNE Y8 Patented Feb. 5, 1924.

"BOX-CA'R-DOOR HANGER.

Application filed :Tnly .25, L922. Serial No. 577,327.

To all whom it may concern Be it known that I, Fran-n M. FRmsELL, a citizen of'the Unit-ed States, residing at the city and county of San Francisco and State of Calitorn ia, have invented new and useful Improvements in BoX-Car-Door .Hangers, of which the following :is a specifimg which cooperates with said movement;

to provide a door which may be readily and efficiently sealed in closed position, and whichpresents a fi-ush surface with relation to the side of the car when closed to reduce wind loads to a minimum. Further objects will hereinafter appear.

iOne form which my invention may assume is exemplified in the following description and illustrated in the accompanying draw ings, in which Fig. 1 is a partial side elevation of a railway hon car showing the application of the invention.

Fig. 2 is a partial plan view thereof the car wall being shown in section.

Fig. 3 is a vertical .cross section.

Figs. 4: and 5 are front and side views respectively of a door hai-iging plate.

Fil (5 is a )ersoectine view of one of the bracket arms.

Fig. 7 is a front view of one of the bracket arm supporting brackets.

'8 is a longitudinal central section showing the arrangement ofthe sealing me dinm.

Referring to the drawings in detail, and particularly to Figs. 1, 2 and 8, A indicates the root of a box car, 2 the side thereof, 3

the opening through which the freight is entered and removed, t the door by which said opening is closed, and 5 a track upon which the door is longitudinally movable. The track as illustrated is substantially channelshapedin cross "section and the lower flange portionythereof lt'onms the rail upon which the door is longitudinally movable, said movement being obtained by supper ing the door with relation to the track by means of hanger plates 6 and rollers 7 journal led thereon. The rollers are Efi-anged in the usual manner and are turnuble about pins 8, which in this instance are formed as an integral part of the plates 6. These plates are bolted to the door as shown and two or more may be employed as desired. Each plate is also provided with an out wardly projecting lug 9 which extends in under the track .5 and as such serves as a guard to prevent jumping of the rollers with relation to the track or disengagement from the same. Stops are provided at each end of the track to limit the longitudinal movement of the door and the method of positionin-g one of said stops will hereinafter be described.

The door has a lateral and longitudinal movement with relation to the opening to he closed and this is also true of the track 5, the only difference being that the longitudinal movement of the traclrisexceedingly limited when compared with the movement of the door. To permit lateral and longitudinal movement of the track 5, pivotally supported bracket arms l O are employed. These arms are pivotally secured on their inner ends on pins 11-, which are formed as integral parts of plates 12 and the opposite ends are pivotally connected .to the track 5, as at 13, by pins 14 for-med as integral parts of plates 15. The plates 12 and 15 and the pins 11 and 1-4 are identical in construction, the plates 12 being secured to the side of the car by means of bolts or the like as shown at 16 and the plates 15 are similarly secured to the track 5 by means of bolts or the like, a detailview of the plates 12 and 15 and the pins carried thereby being shown in Fig. 7. The pins are slightly tapered as shown to take up any wear which may take place and the holes in the arms 10 are similarly tapered and the tapers are reversed at the opposite ends of the arms to render the arms reversible.

. By mounting the track in the manner disclosed it can be seen that when the track is swung in a forward direction it will lie flush with the side of the car and that when moved in the opposite direction an outward orlateral movement will first take place and as the end of the movement is reached, asub stantially parallel position of the track will be assumed with relation to the side of the car, further movement will, however, not take place as means for preventing such movement is provided as will hereinafter be described. 7

The door proper may be constructed in any suitable manner, but is in most instances encased or surrounded by strap iron as indicated at 18. The sides and top of the door opening are similarly lined with strap iron as indicated at 19. The opening presented by the straps 19 is slightly less than that presented by the straps 18 and as both straps are slightly extended beyond the surfaces lined, as'shown in Fig. 8, overlap ping of the straps will take place and a sealed joint between the door and the car may be readily formed by the insertion of a piece of burlap, tar paper or the like indicated at 31. The door may be provided with any form of lock desired, but a three-bolt lock is in this instance illustrated, the three bolts being indicated at 20, 21 and 22, and all bolts being extended and retracted in unison by means of a centrally disposed operating arm 23, to which they are piv0t ally attached. The bolts are guided by keepers secured on the door and when projected enter keepers secured on the-side of the car and above the door opening, these keepers being indicated at 24., The lower edge of the door is in most instances guided by means of a channel iron, but is in this instance guided by a series of malleable or steel brackets such as indicated at 25. These brackets serve the same function as a continuous piece of channel iron, but they are more practical as the channel iron is more. readily bent or damaged by trucks backing into the car, etc.

Such bending of the channel arm often jams the doors and renders the operation of openingand closing the door exceedingly difficult. If one of the brackets here illustrated should be bent, it is obvious that it would necessary to partially rotate the lever Such turning movement releases the bolts 20,

21 and 22 with relation to the keepers 2-1; and the door thus unlocked is freeto be opened. This is accomplished by first pu1l ing outwardly on the door, such outward movement causing the'bracket arms 10 to swing outwardly about their pivotal supports and the door is in this manner swung laterally or outwardly from, the opening which it closes. When completely extended, longitudinal movement is imparted to the door and it will then slide along the track until the door has been completely opened, being here prevented from further movement by stationarydoor stops as indicatgd at 28. As previously stated the track 5 swings outwardly until the arms 10 are extended when the door is moved outwardly from the opening which it'closes. Further movement of the arms is prevented when longitudinal movement'is imparted to the door as a strap 29 secured on the inner sic e of the door will then engage the keeper indicated at 24 and slide along the surface of the same, thus preventing inwardmovement of the track and'the door when it is being opened. A forward stop is formed on the track as indicated at 30. This stop is riveted welded or otherwise secured to the track after the dooris hung as its position can then be readily determined, that .isafter the tracks, hangers and door have been placed in position, the door is slid along the track until it substantially registers with thedoor ing,

cinder-proofing, etc, is obtained, thus permitting thecarrying of grain and other 'materials in bulk and eliminating the necessity of employing lumber or other source of sealingas required by the Interstate Gom merce Commission, this being particularly true when shipping explosives. Fourth, the door structure here shown does away with'undue loss of time, labor and breakage of the cars anddoors, due tothe fact that any internal pressure exerted against the door will aid in opening the same. That is the door in this instance swings out a distance to approximately four inches from closed position and then slides along the side of the 'car where considerable clearance is maintained. For this reason internalpressure is released the moment the door is opened and the difficulties usually encounte-redin ordinary doors are eliminated. Breakage ofthe door, etc.,is also avoided as the use of pinch bars and the like will be unnecessary. Fifth, large bearing pins may as here illustrated, the three-bolt lock being desirable as the side locking; bars may be located at the point of maximum load'when the car is carrying naterialin bulk. Seventh, by employing a three-boltlock and an operating lever it is possible to seal the V operating lever and the door can therefore not be opened without breaking the seal, nor can it be opened from the inside of the car. Eighth, the type of structure employed can be used on any style of freight or stock car, whether constructed of steel or wood. Ninth, the present structure does away with the danger of breakage by heavy trucks hacking into the door opening, such breakage in the car being very marked in the style of the car being used at the present time. That is a heavy truck when backing against the car will have a tendency to break or bond the castings supporting the door rollers, causing the rollers to jam and making it necessary to slide the door along by crowbars or the like. The channel irons guiding the lower edge of the door are also liable to be bent by trucks and the like, but this is avoided in the present instance by the guide lugs employed. Tenth, sealing of the door against weather and entrance of cinders is readily accomplished in the present instance as the strap irons enclosing the door and lining the door opening overlap approximately one-quarter of an inch. These overlapping edges form guards or step-like formations which permit the insertion of a sealing medium such as burlap, liar paper or the lilqe, and when such seal is employed leakage from rain or otherwise is entirely prevented. Eleventh, grain carried in bulk may be readily handled by a stucture of this kind, but the car should be equipped with a small door above the center of the car for the purpose of loading. If special sealing is required, strips of tar paper can be placed entirely around the edge of the door and the door when closed will then be sufliciently tight to exclude moisture, retain grain, etc. When loading, the cars will have to be unloaded into a bin and the door will open sufficiently to allow the grain or other material to flow freely until such time as the door can be entirely opened and the grain handled by hand. Again, it can be readily seen that the car can be equipped with floor traps which may be opened for unloading purposes if desired.

Having thus described my invention, what I claim and desire to secure by Letters Patent is V 1. A car of the character described having a door opening therein, a track pivotally for taking up the wear of the pivotal con nections, a door, rollers carried by the door and engaging the track, the said door being capable oflongitudinal and lateral movement to open and close the door opening.

3. A car of the class described having a door opening therein, plates secured to the car adjacent the door opening and having tapered studs thereon, a track, plates secured to the track having tapered studs thereon and a link having tapered openings therein to receive the studs on the plates to provide a pivotal mounting for the track,

and a door suspended from the track for,

longitudinal and lateral movement.

at. A car of the class described comprising a door opening, a track pivotally mounted above the door opening for inward and outward movement, the said track comprising a channel member having a long and a short leg connected by a web, the short leg being spaced from the pivotal supporting means for the track and forming a runway, a door, rollers 011 the door adapted to engage the short leg of the track and lying below the plane of the track supporting means, the said door being capable of longitudinal and lateral movement.

5. A car of the class described having a door opening therein, a track pivotally mounted above the door opening for inward and outward movement, a door, rollers on the door engaging the track and permitting longitudinal and lateral movement thereof, a lock for the door comprising sliding rods and keepers, one of the keepers forming a stop to prevent inward movement of the track and door when the same is in open position.

FRANK M. FRIESELL. 

